8000 ENH: Add a typing protocol for representing nested sequences by BvB93 · Pull Request #19894 · numpy/numpy · GitHub
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ENH: Add a typing protocol for representing nested sequences #19894

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Merged
merged 3 commits into from
Sep 20, 2021
Merged

ENH: Add a typing protocol for representing nested sequences #19894

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5580a4c
ENH: Add a protocol for representing nested sequences
Jan 12, 2021
a315d5e
MAINT: Replace the old `_NestedSequence` union and remove `_Recursive…
Jan 12, 2021
0ae66c2
TST: Added tests for `NestedSequence`
Jan 12, 2021
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TST: Added tests for NestedSequence
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Bas van Beek committed Sep 19, 2021
commit 0ae66c201f5cbd1cd391701f1eeb1c78d92f4e1e
17 changes: 17 additions & 0 deletions numpy/typing/tests/data/fail/nested_sequence.py
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from typing import Sequence, Tuple, List
import numpy.typing as npt

a: Sequence[float]
b: List[complex]
c: Tuple[str, ...]
d: int
e: str

def func(a: npt._NestedSequence[int]) -> None:
...

reveal_type(func(a)) # E: incompatible type
reveal_type(func(b)) # E: incompatible type
reveal_type(func(c)) # E: incompatible type
reveal_type(func(d)) # E: incompatible type
reveal_type(func(e)) # E: incompatible type
23 changes: 23 additions & 0 deletions numpy/typing/tests/data/reveal/nested_sequence.py
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from typing import Sequence, Tuple, List, Any
import numpy.typing as npt

a: Sequence[int]
b: Sequence[Sequence[int]]
c: Sequence[Sequence[Sequence[int]]]
d: Sequence[Sequence[Sequence[Sequence[int]]]]
e: Sequence[bool]
f: Tuple[int, ...]
g: List[int]
h: Sequence[Any]

def func(a: npt._NestedSequence[int]) -> None:
...

reveal_type(func(a)) # E: None
reveal_type(func(b)) # E: None
reveal_type(func(c)) # E: None
reveal_type(func(d)) # E: None
reveal_type(func(e)) # E: None
reveal_type(func(f)) # E: None
reveal_type(func(g)) # E: None
reveal_type(func(h)) # E: None
0